15461555261 has 8 divisors (see below), whose sum is σ = 15626382720. Its totient is φ = 15297010992.

The previous prime is 15461555237. The next prime is 15461555287. The reversal of 15461555261 is 16255516451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15461555261 - 2³⁰ = 14387813437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15461555861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39896 + ... + 180318.

It is an arithmetic number, because the mean of its divisors is an integer number (1953297840).

Almost surely, 2^15461555261 is an apocalyptic number.

It is an amenable number.

15461555261 is a deficient number, since it is larger than the sum of its proper divisors (164827459).

15461555261 is a wasteful number, since it uses less digits than its factorization.

15461555261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141595.

The product of its digits is 180000, while the sum is 41.

The spelling of 15461555261 in words is "fifteen billion, four hundred sixty-one million, five hundred fifty-five thousand, two hundred sixty-one".